deletions | additions       diff --git a/begin_equation_mathcal_T_n__.tex b/begin_equation_mathcal_T_n__.tex  index 2f01b2a..b670760 100644  --- a/begin_equation_mathcal_T_n__.tex  +++ b/begin_equation_mathcal_T_n__.tex 
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\begin{equation*}  \mathcal{T}(n) \mathcal{T}(\mathcal{n})  = \sum \frac{(a-b)(a-c)(a-d)(a-e)(b-c)(b-d)(b-e)(c-d)(c-e)(d-e)}{1\,!\,2\,!\,3\,!\,4\,!}\nonumber \end{equation*}